mei's ult in its current state is meant to get people off the point much like prebuff dva ult , create panic/split up the enemy team as everyone tries to not get frozen or combo with shit like zarya's ult for an easy wipe.

Hanzo isn't really good or wasn't last time I played, been a few weeks just annoying.

What needs to be nerfed is the fact that Roadhog just have to throw his hook in your general direction and still hit you. Playing Ana or Zen against him is a nightmare, he doesn't even have to aim and still he fucks you up.